Toyo® announces a new 425/65R22.5 size for their M320™ wide base super single tire. Designed for tough on/off highway use in applications such as dump trucks, concrete mixers and refuse trucks, the M320 is the ideal solution for durability in construction and refuse hauling applications. The M320 features large tread blocks with functional sipes and three wide zigzag grooves to improve traction both off the road and on the streets. It has a long life due to an optimized casing profile which minimizes growth of the tread area while maintaining a more uniform and flatter tread radius during its service life.